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【单选题】
—The trip shouldn’t take more than an hour. — ______It is at least two hours.A.
I guess so
B.
That’s it
C.
You must be joking
D.
It all depends
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【简答题】极差、平均偏差、相对平均偏差、标准偏差和相对标准偏差都可用来表示( )大小
【单选题】盘形凸轮机构的滚子从动件被损坏,换上一个半径不同的滚子,则 。
A.
压力角不变，运动规律不变
B.
压力角变，运动规律也变
C.
压力角不变，运动规律变
D.
压力角变，运动规律不变
【简答题】目标管理的英文简称是()。
【简答题】平屋顶防水包括
【单选题】Reality television is a kind of television programming which, it is claimed, presents unscripted dramatic or humorous situations, documents actual events, and features ordinary people rather than prof...
A.
he agrees with the statement
B.
everyone agrees with the statement
C.
no one agrees with the statement
D.
he wants to distance himself from the statement
【单选题】Compared with public television, commercial television______.
A.
broadcast programs which don't advertise products
B.
have the right to choose programs for their audience
C.
have to broadcast programs that cater to preferences of their audience
D.
compete fiercely with other broadcasting stations
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